<style type="text/css">
.button1 { background : #ebebeb;
        border: 1px solid #888888;
        color:#333333;
        font-family: Arial, Helvetica, sans-serif;
        font-size: 12px;
        height:23px;
        cursor:pointer }
</style>


function alertWin(title, msg, w, h){
        var titleheight = "20px"; // 提示窗口标题高度
        var bordercolor = "#666699"; // 提示窗口的边框颜色
        var titlecolor = "#FFFFFF"; // 提示窗口的标题颜色
        var titlebgcolor = "#1d5798"; // 提示窗口的标题背景色
        var bgcolor = "#FFFFFF"; // 提示内容的背景色
        var iWidth = document.documentElement.clientWidth;
        var iHeight = document.documentElement.clientHeight;
        var bgObj = document.createElement("div");
        bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:"+iWidth+"px;height:"+Math.max(document.body.clientHeight, iHeight)+"px;filter:Alpha(Opacity=10);opacity:0.1;background-color:#000000;z-index:101;";
        document.body.appendChild(bgObj);
        var msgObj=document.createElement("div");
        msgObj.style.cssText = "position:absolute;font:11px '宋体';top:"+(iHeight-h)/2+"px;left:"+(iWidth-w) /2+"px;width:"+w+"px;height:"+h+"px;text-align:center;border:1px solid "+bordercolor+";background-color:"+bgcolor+";padding:1px;line-height:22px;z-index:102;";
        document.body.appendChild(msgObj);
        var table = document.createElement("table");
        msgObj.appendChild(table);
        table.style.cssText = "margin:0px;border:0px;padding:0px;";
        table.cellSpacing = 0;
        var tr = table.insertRow(-1);
        var titleBar = tr.insertCell(-1);
        titleBar.style.cssText = "width:100%;height:"+titleheight+"px;text-align:left;padding:3px;margin:0px;font:bold 13px '宋体';color:"+titlecolor+";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor;
        titleBar.style.paddingLeft = "10px";
        titleBar.innerHTML = title;
        var moveX = 0;
        var moveY = 0;
        var moveTop = 0;
        var moveLeft = 0;
        var moveable = false;
        var docMouseMoveEvent = document.onmousemove;
        var docMouseUpEvent = document.onmouseup;
        titleBar.onmousedown = function() {
        var evt = getEvent();
        moveable = true;
        moveX = evt.clientX;
        moveY = evt.clientY;
        moveTop = parseInt(msgObj.style.top);
        moveLeft = parseInt(msgObj.style.left);
        document.onmousemove = function() {
        if (moveable) {
        var evt = getEvent();
        var x = moveLeft + evt.clientX - moveX;
        var y = moveTop + evt.clientY - moveY;
        if ( x > 0 &&( x + w < iWidth) && y > 0 && (y + h < iHeight) ) {
        msgObj.style.left = x + "px";
        msgObj.style.top = y + "px";
        }
}
};

document.onmouseup = function () {
        if (moveable) {
        document.onmousemove = docMouseMoveEvent;
        document.onmouseup = docMouseUpEvent;
        moveable = false;
        moveX = 0;
        moveY = 0;
        moveTop = 0;
        moveLeft = 0;
        }
};
}
var closeBtn = tr.insertCell(-1);
closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor;
closeBtn.innerHTML = "<span style='font-size:15pt; color:"+titlecolor+";'>×</span>";
closeBtn.onclick = function(){
        document.body.removeChild(bgObj);
        document.body.removeChild(msgObj);
        }
var msgBox = table.insertRow(-1).insertCell(-1);
msgBox.style.cssText = "font:10pt '宋体';";
msgBox.colSpan  = 2;
msg="
    <table>
        <tr>
            <td>
                <form id=form1 action=''>用户名
                    <input type='text' name='textfield' />
                密码
                    <input type='text' name='textfield2' />

                    </form>
            </td>
        </tr>
    </table>";
    msgBox.innerHTML = msg;
    // 获得事件Event对象，用于兼容IE和FireFox
    function getEvent() {
            return window.event || arguments.callee.caller.arguments[0];
            }
    }
